Dodge TA0107L User manual

1
Dodge® Speed Reducer
Tapered and Short Shaft Bushing Assemblies
Instruction Manual
TA0107L TA4207H TA8407H
TA1107H TA521 5H TA9 415H
TA 21 15 H TA6307H TA10507H
TA3203H TA7315H TA12608H
These instructions must be read thoroughly before installation or operation. This instruction manual was accurate at the time of
printing. Please see dodgeindustrial.com for updated instruction manuals.
WARNING: To ensure the drive is not unexpectedly started, turn o and
lock-out or tag power source before proceeding. Failure to observe these
precautions could result in bodily injury.
WARNING: Because of the possible danger to person(s) or property
from accidents which may result from the improper use of products,
it is important that correct procedures be followed. Products must be
used in accordance with the engineering information specied in the
catalog. Proper installation, maintenance and operation procedures
must be observed. The instructions in the instruction manuals must
be followed. Inspections should be made as necessary to assure
safe operation under prevailing conditions. Proper guards and other
suitable safety devices or procedures as may be desirable or as may
be specied in safety codes should be provided, and are neither
provided by Dodge nor are the responsibility of Dodge. This unit and
its associated equipment must be installed, adjusted and maintained
by qualied personnel who are familiar with the construction and
operation of all equipment in the system and the potential hazards
involved. When risk to persons or property may be involved, a holding
device must be an integral part of the driven equipment beyond the
speed reducer output shaft.
WARNING: All products over 25 kg (55 lbs) are noted on the shipping
package. Proper lifting practices are required for these products.
BUSHING INSTALLATION
The Dodge Torque-Arm II Reducer is designed to t both
standard and short length driven shafts. The Standard Taper
Bushings series is designed where shaft length is not a concern.
The Short Shaft Bushing series is to be used where the driven
shaft does not extend through the reducer.
Figure 1 - Key Marking
Standard Taper Bushings
1. One bushing assembly is required to mount the reducer
on the driven shaft. An assembly consists of two tapered
bushings, bushing screws and washers, two bushing backup
plates and retaining rings, and necessary shaft key or keys.
The driven shaft must extend through the full length of the
reducer. If the driven shaft does not extend through the
reducer do not use the standard tapered bushings; instead
use the short shaft bushings as described in the Short Shaft
Bushings section that follows. The minimum shaft length, as
measured from the end of the shaft to the outer edge of the
bushing ange (see Figure 1), is given in Table 1.
2. Install one bushing backup plate on the end of the hub and
secure with the supplied retaining ring. Repeat procedure for
other side.
3. Place one bushing, ange end rst, onto the driven shaft and
position per dimension “A”, as shown in Table 1. This will allow
the bolts to be threaded into the bushing for future bushing
and reducer removal.
4. Insert the output key in the shaft and bushing. For easy of
installation, rotate the driven shaft so that the shaft keyseat is
at the top position.
NOTE: In most cases the keys that are supplied with the
bushing kit are NOT square keys, and the orientation of
the key is important. Install the key so that it ts snugly in
the width of the keyseat. The keys are marked with a part
number and some keys are also etched with “THIS SIDE
UP” – these markings should be showing on the top of the
key when it is installed in the shaft keyseat, see Figure 1
below.
PART NUMBER
AND MARKING
S

2MN1641
5. Mount the reducer on the driven shaft and align the shaft key
with the reducer hub keyway. Maintain the recommended
minimum distance “A” from the shaft bearing.
6. Insert the screws, with washers installed, in the unthreaded
holes in the bushing ange and align with the threaded holes
in the bushing backup plate. If necessary, rotate the bushing
backup plate to align with the bushing screws. Tighten the
screws lightly. If the reducer must be positioned closer than
dimension “A”, place the screws with washers installed, in the
unthreaded holes in the bushing before positioning reducer
making sure to maintain at least 1/8” between the screw
heads and the bearing.
7. Place the second tapered bushing in position on the shaft
and align the bushing keyway with the shaft key. Align the
unthreaded holes in the bushing with the threaded holes in
the bushing backup plate. If necessary, rotate the bushing
backup plate to align with the bushing holes. Insert bushing
screws, with washers installed in the unthreaded holes in the
bushing. Tighten screws lightly.
8. Alternately and evenly tighten the screws in the bushing
nearest the equipment to the recommended torque given in
Table 1. Repeat procedure on outer bushing.
Short Shaft Bushings
1. One bushing assembly is required to mount the reducer on
the driven shaft. An assembly consists of one long tapered
bushing, one short tapered bushing, one tapered bushing
wedge, bushing screws and washers, two bushing backup
plates and retaining rings, and necessary shaft key or keys.
The driven shaft does not need to extend through the reducer
for the short shaft bushing to operate properly. The minimum
shaft length, as measured from the end of the shaft to the
outer edge of the bushing ange (see Figure 2), is given in
Table 1.
2. The long bushing is designed to be installed from the side of
the reducer opposite the driven equipment as shown in Figure
3. The long bushing when properly installed is designed to
capture the end of the customer shaft that does not extend
through the reducer. Normally the reducer would be mounted
such that the input shaft extends from the side of the reducer
opposite the driven equipment however the reducer design
allows installation of the reducer to be mounted in the
opposite direction.
3. Install the tapered bushing wedge into the hollow bore of
the reducer from the same side as the long bushing will be
installed. When installing the tapered bushing wedge into the
reducer hub, install the ange end rst so that the thin taper
is pointing outwards towards the long bushing as shown in
Figure 3. The wedge is properly installed when it snaps into
place in the reducer hub.
4. Align the tapered bushing wedge keyway with the reducer hub
keyway. The keyway in the wedge is slightly wider than the
keyway in the reducer hub allowing for easier installation.
NOTE: In most cases the keys that are supplied with the
bushing kit are NOT square keys, and the orientation of
the key is important. Install the key so that it ts snugly in
the width of the keyseat. The keys are marked with a part
number and some keys are also etched with “THIS SIDE
UP” – these markings should be showing on the top of the
key when it is installed in the shaft keyseat, see Figure 4
below.
5. Install one bushing backup plate on the end of the hub and
secure with the supplied retaining ring. Repeat procedure for
other side.
6. Install the short bushing; ange rst, on the driven shaft and
position per dimension “A”, as shown in Table 1. This will allow
the bolts to be threaded into the bushing for future bushing
and reducer removal.
7. Insert the output key in the shaft and bushing. For ease of
installation, rotate the driven shaft so that the shaft keyseat is
at the top position.
8. Mount the reducer on the driven shaft and align the shaft key
with the reducer hub keyway. Maintain the recommended
minimum distance “A” from the shaft bearing.
9. Insert the screws, with washers installed, in the unthreaded
holes in the bushing ange and align with the threaded holes
in the bushing backup plate. If necessary, rotate the bushing
backup plate to align with the bushing screws. Tighten the
screws lightly. If the reducer must be positioned closer than
dimension “A”, place the screws with washers installed, in the
unthreaded holes in the bushing before positioning reducer
making sure to maintain at least 1/8” between the screw
heads and the bearing.
10. Place the long bushing in position on the shaft and align the
bushing keyway with the shaft key. Use care to locate the
long bushing with the tapered bushing wedge installed earlier.
Align the unthreaded holes in the bushing with the threaded
holes in the bushing backup plate. If necessary, rotate the
bushing backup plate to align with the bushing holes. Insert
bushing screws, with washers installed in the unthreaded
holes in the bushing. Tighten screws lightly.
11. Alternately and evenly tighten the screws in the bushing
nearest the equipment to the recommended torque given in
Table 1. Repeat procedure on outer bushing.
A
MINIMUM SHAFT LENGTH
Figure 2 - Minimum Recommended Dimensions
Figure 3 - Short Shaft Bushing and
Output Assembly
Figure 4 - Key Marking
PART NUMBER
AND MARKING
S

3MN1641
Bushing Removal for Standard Taper or Short Shaft
Bushings
1. Remove bushing screws.
2. Place the screws in the threaded holes provided in the
bushing anges. Tighten the screws alternately and evenly
until the bushings are free on the shaft. For ease of tightening
screws make sure screw threads and thread holes in the
bushing anges are clean. If the reducer was positioned
closer than the recommended minimum distance “A” as
shown in Table 1, loosen the inboard bushing screws until
they are clear of the bushing ange by 1/8”. Locate two (2)
wedges at 180 degrees between the bushing ange and
the bushing backup plate. Drive the wedges alternately and
evenly until the bushing is free on the shaft.
3. Remove the outside bushing, the reducer, and then the
inboard bushing.
Table 1 - Minimum Required Shaft Length (Inches)
Reducer Size Standard Taper Bushing Short Shaft Bushing
TA0107L 6.83 4.32
TA1107H 6.95 4.43
TA2115H 7.8 0 4.80
TA3203H 8.55 5.46
TA4207H 8.94 5.66
TA5215H 10.33 6.35
TA6307H 10.82 6.72
TA7315H 11.87 7.62
TA8407H 12.82 8.10
TA9415H 13.74 8.56
TA10507H 15.46 9.67
TA12608H 18.32 11.60
Bushing Screw Information and Minimum Clearance for Removal
Reducer Size Fastener Size Torque in Ft. -Lbs. A (inches)
TA0107L 5/16–18 17–20 1.08
TA1107H 5/16–18 17–20 1.20
TA2115H 3/8–16 17–20 1.20
TA3203H 3/8–16 17–20 1.20
TA4207H 3/8–16 23–26 1.48
TA5215H 1/2–13 67–77 1.81
TA6307H 1/2–13 67–77 1.81
TA7315H 1/2–13 67–77 2.06
TA8407H 1/2–13 67–77 2.06
TA9415H 5/8–11 75–86 2.39
TA10507H 5/8–11 75–86 2.39
TA12608H 5/8–11 75–86 2.39

Dodge Mechanical Power Tranmission Company, Inc.
6040 Ponders Court
Greenville, SC 29615
Ph: 1.864.297.4800
© Dodge Mechanical Power Transmission Company, Inc.
MN1641 (Replaces 499382)
All Rights Reserved. Printed in USA.
11/21
*1641-1121*